Some of Motorola's latest dual-SIM Moto G models are facing network connectivity issues in India.

The new shipments of Moto G, which have been delivered to customers in India, is riddled with a bug (programming error), causing problems while activating the phone. The non-registration of IMEI (International Mobile Equipment Identity) number with the local carriers is the prime reason for the issue, said the company.

[Note: If the authenticated IMEA number is not registered in the network carrier database, the phone will be rendered useless for telecommunication purpose]

It has to be noted that the network activation problem is faced only in a select Moto G devices; part of a new batch which were shipped to India recently.

Flipkart, Motorola's official Indian retailer, is sending emails to all the affected buyers, detailing the issues and what course of action is to be taken.

As a goodwill gesture, Motorola is offering ₹1200 cash credit (via Flipkart account) to the affected consumers, who should wait for a couple more days to get the problem fixed. If they are not ready to wait, then customers can return the device to Flipkart for a full cash refund; no questions asked.

Here is the official Motorola transcript to fans via Facebook.

"Dear ‪#‎MotoG customers, we've uncovered an activation problem with some #MotoG devices sold in India as they have been shipped with IMEI numbers that are not yet registered with carriers. If you have recently purchased a Moto G and have network connectivity problems this may apply to you. This is due to a programming error from our end and we owe you a big apology!

We are working around the clock to resolve this. If you are impacted, we've sent you an email via Flipkart to explain everything and what we're doing to make it right."

In related news, Motorola's Moto E has done an encore of Moto G sales in India as the competitively price feature-rich smartphone has received overwhelming response in India.

The phone was launched twice last month (14 May and 23 May) and, on both occasions, the device was sold out on the same day. Flipkart has temporarily stopped taking orders for Moto E. But interested buyers can log in at Flipkart to get real-time information on the availability of the Motorola budget phone.

Key specifications of Motorola Moto G and Moto E:

Model Motorola Moto G Motorola Moto E
Display 4.5-inch HD (1270x720p) LCD screen with Corning Gorilla Glass 3 shieldPixel Density: 329 ppi (pixels per inch) 4.3-inch qHD (960x540p) screen with Corning Gorilla Glass 3 shieldPixel density : 256 ppi
OS Android v4.4 KitKat Android v4.4 KitKat
Processor Qualcomm Snapdragon 400 series quad-core processor with 1.2GHz CPU speed 1.2GHz Qualcomm Snapdragon 200 series dual-core CPU (with 400MHz Adreno 302)
Storage capacity 8GB/16 GB variants  4GB, expandable up to 32GB
Camera Main: 5.0-megapixel camera with LED flashFront: 1.3-megapixel camera Main: 5.0-megapixel camera (no flash)Front : no camera
Network 3G & 4G-LTE (select markets only) 3G
Battery 2,070 mAh; Can provide power for close to 24 hours under mixed media usage 1980 mAh (Li-Ion); Can provide power for close to 24 hours under mixed media usage
Add-ons Wi-Fi (802.11 b/g/n),Bluetooth v4.0, USB, NFC, GPS, microSD card slot Dual-SIM slots, Bluetooth v4.0 (with LE), Wi-Fi (802.11 b/g/n), micro-USB v2.0, microSD card slot, FM radio,
Dimensions 129.9 x 65.9 x 11.6 mm 124.8x 64.8 x 12.3 mm
Weight 143 g 142 g
Price 8GB: ₹12,499;16GB: ₹13,999; ₹6,999